Manual driving force sensing unit for motor driven vehicle

Motor vehicles – Steered by walking attendant – Handle movement controls vehicle drive

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180 651, B62D 5104

Patent

active

057327866

ABSTRACT:
A motor-driven vehicle includes a vehicle body including a handlebar, a drive wheel mounted to the vehicle body, a driving unit for driving the drive wheel, and a manual-driving-force sensing unit for sensing a manual driving force exerted to the handlebar to move the vehicle body and generating a control signal for controlling the driving unit in accordance with the sensed manual driving force. The manual-driving-force sensing unit includes a displaceable grip mounted displaceable along the length of said handlebar, a potentiometer for sensing displacement of the grip and generating the control signal in accordance with the sensed displacement of the grip, first and second stop members disposed spaced from each other along the length of the handlebar, a spring having one end contacting the first stop member and having the other end contacting the second stop member, and a piston having first and second portions adjacent to said first and second stop members, respectively, for driving the spring.

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European Search Report for Application No. EP 95 30 3856, completed 17 Jan. 1996.
Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, vol. 13, No. 4, 1991, Orlando, Florida, USA.

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